:root {
    --bg-main: #0a0a0c;       /* Глубокий матовый черный */
    --bg-card: #12141c;       /* Slate-панели под интерфейс */
    --accent-green: #00ff66;  /* Неоновый зеленый (успех/статус) */
    --accent-cyan: #00d2ff;   /* Циан для ссылок */
    --text-main: #ffffff;
    --text-muted: #7f8c8d;
    --text-body: #dcdde1;
    --max-width: 1000px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* NAVBAR */
.navbar { background-color: var(--bg-card); border-bottom: 1px solid #1f2431; position: sticky; top: 0; z-index: 100; }
.nav-container { display: flex; justify-content: space-between; align-items: center; padding: 15px 20px; }
.logo { font-size: 20px; font-weight: 800; color: #fff; text-decoration: none; }
.logo span { color: var(--accent-green); }
.nav-menu { display: flex; gap: 25px; }
.nav-link { color: var(--text-muted); text-decoration: none; font-size: 14px; font-weight: 500; transition: 0.2s; }
.nav-link:hover, .nav-link.active { color: #fff; }

/* BUTTONS */
.btn { display: inline-block; padding: 12px 24px; font-size: 14px; font-weight: 600; text-decoration: none; border-radius: 4px; transition: 0.2s; text-align: center; cursor: pointer; border: none; }
.btn-primary { background-color: var(--accent-green); color: #000; }
.btn-primary:hover { background-color: #00e55c; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,255,102,0.2); }
.btn-secondary { background-color: transparent; color: #fff; border: 1px solid #2c354a; }
.btn-secondary:hover { border-color: #fff; }
.btn-nav { padding: 6px 16px; background-color: transparent; border: 1px solid var(--accent-green); color: var(--accent-green); }
.btn-nav:hover { background-color: var(--accent-green); color: #000; }

/* TABLES & CARDS */
.task-table { width: 100%; border-collapse: collapse; margin-top: 20px; background-color: var(--bg-card); border-radius: 6px; overflow: hidden; border: 1px solid #1f2431; }
.task-table th, .task-table td { padding: 14px; text-align: left; border-bottom: 1px solid #1f2431; font-size: 14px; }
.task-table th { background-color: #171b26; color: var(--text-muted); font-weight: 600; }
.status-badge { display: inline-block; padding: 2px 8px; border-radius: 3px; font-size: 12px; font-weight: 600; background-color: rgba(0,255,102,0.1); color: var(--accent-green); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; }
.card { background-color: var(--bg-card); padding: 30px 20px; border-radius: 6px; border: 1px solid #1f2431; transition: 0.3s; }
.card:hover { border-color: var(--accent-green); }

/* FOOTER */
.main-footer { background-color: #050507; padding: 30px 0; border-top: 1px solid #1f2431; margin-top: 60px; font-size: 13px; color: var(--text-muted); text-align: center; }
.footer-links { display: flex; justify-content: center; gap: 20px; margin-top: 15px; }
.footer-link { color: var(--text-muted); text-decoration: none; }
.footer-link:hover { color: #fff; }

@media (max-width: 768px) { .grid-3 { grid-template-columns: 1fr; } .nav-menu { display: none; } }